54421012381 has 2 divisors, whose sum is σ = 54421012382. Its totient is φ = 54421012380.

The previous prime is 54421012369. The next prime is 54421012403. The reversal of 54421012381 is 18321012445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27448205625 + 26972806756 = 165675^2 + 164234^2 .

It is a cyclic number.

It is not a de Polignac number, because 54421012381 - 2¹¹ = 54421010333 is a prime.

It is a super-2 number, since 2×54421012381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54421010381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27210506190 + 27210506191.

It is an arithmetic number, because the mean of its divisors is an integer number (27210506191).

Almost surely, 2^54421012381 is an apocalyptic number.

It is an amenable number.

54421012381 is a deficient number, since it is larger than the sum of its proper divisors (1).

54421012381 is an equidigital number, since it uses as much as digits as its factorization.

54421012381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 31.

The spelling of 54421012381 in words is "fifty-four billion, four hundred twenty-one million, twelve thousand, three hundred eighty-one".